Automatically controlled



March 26, 1935. H, w. JOCKERS 1,995,886

AUTOMATICALLY CONTROLLED DISINFECTANT HEATER Filed Nov. 25, 1933 ATTORNEY Patented Mar. 26, 1935 UNITED STATES PATENT OFFICE AUTOMATICALLY CONTROLLED DISINFECTANT HEATER 3 Claims.

'Ihe object of my invention is to devise a novel automatically controlled electrical heater for vaporizing the disinfectant, and wherein when the disinfectant has evaporated the circuit of the electric current will be automatically opened.

A further object of the invention is to devise a novel mounting for a heater so that when placed in a liquid container the device will rock in a lateral direction to close the electric circuit and when the liquid disinfectant has evaporated, the

device will automatically return to its initial position to cause the electric circuit to open.

With the above and other objects in view, as will hereinafter clearly appear, my invention comprehends a novel automatically controlled disinfectant heater.

It further comprehends a novel heater for volatilizing a disinfectant wherein when the disinfectant is evaporated the electric circuit is automatically opened.

Other novel features of construction and advantage will hereinafter appear in the detailed description and the appended claims.

For the purpose of illustrating the invention, I have shown in the accompanying drawing preferred embodiments of it, which, in practice, will give satisfactory and reliable results. It is, however, to be understood that these embodiments are typical only and the various instrumentalities of which my invention consists can be variously arranged and organized, and the invention is not limited to the exact arrangement and organization of these instrumentalities as herein set forth.

Figure 1 is a sectional elevation of an automatically controlled disinfectant heater embodying my invention.

Figure 2 is a side elevation of the heater.

Figure 3 is a sectional elevation of another embodiment of my invention.

Figure 4 is a side elevation partly in section of the embodiment seen in Figure 3.

Similar numerals indicate corresponding parts.

Referring to the drawing:-

1 designates the base of the supporting frame of a disinfectant heater embodying my invention, the base being in the form of an annular band. The base has rising from it a support 2 in the form of a bar having its free ends connected with the base and with side walls converging upwardly, forming an inverted U-shaped construction at the upper end. 3 designates a cone shaped float which is supported at its upper end on a pivot pin 4 passing through the frame support 2, so that as illustrated it is normally pivoted oli center. The float 3 at its lower end carries at one side a heating unit 5 and at its opposite side a heating unit 6 which are electrically connected and in electrical connection with a conventional mercury switch 7 carried by the support at its 5 lower end. The electrical conductors 8 from the heating unit and switch have an electric plug 9 adapted to be inserted in a Wall socket of the lighting system of the room which is to be disinfected.

When the float is in its normal position seen in Figure 1, the switch is open, but when place in a container 10 having a liquid disinfectant therein, the oat swings laterally, thereby moving the mercury switch with it into a position to 15 close the circuit. When the disinfectant is evaporated the float returns to its normal position and the switch opens the electric circuit.

In the embodiment seen in Figures 3 and 4, the frame is formed by the base 11 in the form of an 20 annular band, having connected to it the free ends of a bar 12 which forms a grasping portion at its upper end. 13 is a container for the liquid disinfectant which is fulcrumed at 14 to the base 11.

A counter-weight 15 is secured to one side of the 25 container at the bottom, so that its normal position is that shown in Figure 4. The upper end of the container is provided with an upwardly extending neck 15 having openings 17 through which the fumes pass. 'I'he neck is closed by a cover 18. 30 19 is an electric heating unit extending into the container to volatilize the disinfectant therein.

20 is a conductor adapted to be connected with a source of electric supply and having in one of its leads a conventional mercury switch 21. 22 is a 35 stop on the base. -23 is a cylinder open at its top to receive the disinfectant and surrounding the heating unit.

When the disinfectant is placed in the container the counter-weight is over-balanced and 40 the container swings on its pivot to engage the stop 22. As soon as the disinfectant is evaporated, the counter-weight returns the container to its normal position and the electric circuit for the 4 electric heating unit is opened.

In both forms of my invention as herein shown,

I employ a pivoted member carrying the mercury switch and an electric heating unit. When the member is in its normal position the electric 50 circuit for the heating unit is open, and when the device is in operation the circuit is closed. As soon as the liquid is evaporated, the mercury switch is returned to its circuit opening position.

In the embodiment of the invention herein liable results, itis' to be understood that these embodiments are susceptible ofrmodiication in various particulars without departing from the' spirit or scope of the invention or sacricing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:-

1. In an automatically controlled disinfectant heated, a frame, a float pivoted ofi center at vits upper end to said frame, heating unitsat opposite sides of said support at its lower end and electri-l cally connected, a mercury switch controlling said heating units within said oat and effective to close the circuit when said support swings, laterally in one direction and to open the circuit when said support is in its normal position.

2. In an automatically controlled disinfectant heater, a frame having a base and an upwardly extending bar forming a grasping handle, a conev shaped float pivoted off center at the upper end of said bar, electric heating units secured at opposite sides of the bottom portion of said float, and a mercury switch within said float and controlling said heating units.

3. In an automatically controlled disinfectant heater, a frame comprising a base and a bar rrising Yfrom the base and having upwardly converging members forming a grasping handle, a oat pivoted oi center to said bar and having its swinging movement limited in one direction by said base, electric heating units at opposite sides of the lower end of said float and electrically connected, and a mercury switch in said oat controlling said electric heating units.

. HARRY W. J OCKERS. 

